cathal deehy-power
/
Case_study_rtos_queue
Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Dependencies: C12832 mbed-rtos mbed
Fork of
rtos_queue
by 
mbed official
Embed:
(wiki syntax)
Show/hide line numbers
main.cpp
00001 #include "mbed.h" 00002 #include "rtos.h" 00003 #include "C12832.h" // Include the LCD header files 00004 00005 C12832 lcd(p5, p7, p6, p8, p11); //Initialise LCD 00006 00007 DigitalIn Up(p15); //Initialise Joystick up 00008 DigitalIn Down(p12); //Initialise Joystick down 00009 DigitalIn Left(p13); //Initialise Joystick left 00010 DigitalIn Right(p16); //Initialise Joystick right 00011 00012 00013 AnalogIn Pot1(p19); //Initialise Pot1 to be an analog input 00014 AnalogIn Pot2(p20); //Initialise Pot2 to be an analog input 00015 00016 PwmOut LED_1(p25); //Initialise Blue 00017 PwmOut LED_2(p24); //Initialise Green 00018 PwmOut LED_3(p23); //Initialise Red 00019 00020 PwmOut spkr(p26); //Initialise PWM to speaker 00021 00022 typedef struct //Initialise Sturture 00023 { 00024 float Joystick; //Set Joystick as a float 00025 float Light; //Set Light as a float 00026 float Pot1_Value; //Initialise Red 00027 float Pot2_Value; //Initialise Red 00028 00029 } message_t; //Sturecture name "message_t" 00030 00031 00032 00033 MemoryPool<message_t, 16> mpool; //Allocate a Mpool of value 16 00034 Queue<message_t, 16> queue; //Allocate a Queue of value 16 00035 00036 00037 void Send (void const *args) //Setup the thread function 00038 { 00039 00040 while (true) //Super loop 00041 { 00042 if (Up == 1) //When Joystick is a value of 1 (Pushed up) 00043 { 00044 message_t *message = mpool.alloc(); //allocate memory 00045 message->Joystick = 1; //Set message will be the Joystick Value 1 00046 message->Light = 1; //The message will be the Light Value 1 00047 message->Pot1_Value = Pot1; //Read Pot1 and store in message->Pot1_Value 00048 message->Pot2_Value = Pot2; //Read Pot2 and store in message->Pot2_Value 00049 queue.put(message); //Place it in the Queue 00050 Thread::wait(500); //Thread wait for 500 msec 00051 } 00052 00053 else if (Down == 1) //When Joystick is a value of 1 (Pushed up) 00054 { 00055 message_t *message = mpool.alloc(); 00056 message->Joystick = 2; //Set message will be the Joystick Value 2 00057 message->Light = 2; //The message will be the Light Value 2 00058 message->Pot1_Value = Pot1; //Read Pot1 and store in message->Pot1_Value 00059 message->Pot2_Value = Pot2; //Read Pot2 and store in message->Pot2_Value 00060 queue.put(message); //Place it in the Queue 00061 Thread::wait(500); //Thread wait for 500 msec 00062 } 00063 00064 else if (Left == 1) //When Joystick is a value of 1 (Pushed up) 00065 { 00066 message_t *message = mpool.alloc(); 00067 message->Joystick = 4; //Set message will be the Joystick Value 4 00068 message->Light = 3; //The message will be the Light Value 3 00069 message->Pot1_Value = Pot1; //Read Pot1 and store in message->Pot1_Value 00070 message->Pot2_Value = Pot2; //Read Pot2 and store in message->Pot2_Value 00071 queue.put(message); //Place it in the Queue 00072 Thread::wait(500); //Thread wait for 500 msec 00073 } 00074 00075 else if (Right == 1) //When Joystick is a value of 1 (Pushed up) 00076 { 00077 message_t *message = mpool.alloc(); 00078 message->Joystick = 3; //Set message will be the Joystick Value 3 00079 message->Light = 4; //The message will be the Light Value 4 00080 message->Pot1_Value = Pot1; //Read Pot1 and store in message->Pot1_Value 00081 message->Pot2_Value = Pot2; //Read Pot2 and store in message->Pot2_Value 00082 queue.put(message); //Place it in the Queue 00083 Thread::wait(500); //Thread wait for 500 msec 00084 } 00085 00086 00087 } 00088 } 00089 00090 int main (void) 00091 { 00092 LED_1 = 1; //Turn off R 00093 LED_2 = 1; //Turn off B 00094 LED_3 = 1; //Turn off G 00095 00096 Thread thread(Send); //Start up tread for send 00097 00098 00099 while (true) 00100 { 00101 osEvent evt = queue.get(); //Get next queue 00102 if (evt.status == osEventMessage) 00103 { 00104 message_t *message = (message_t*)evt.value.p; //ppinter in the queue 00105 lcd.cls(); // clear screen of the lcd 00106 lcd.locate(0,3); //set location on the LCD 00107 lcd.printf("Joystick Value: %.2f \n\r" , message->Joystick); //display joystick value on LCD 00108 lcd.printf("Light Value: %.2f \n\r" , message->Light); //display Light value on LCD 00109 lcd.printf("Pot1:%.2f Pot2:%.4f\n\r" , message->Pot1_Value, message->Pot2_Value); //display Pot1 & Pot2 value on LCD 00110 00111 00112 if (message->Light == 1) // When message is value 1 display Light sequence 00113 { 00114 LED_1 = message->Pot1_Value; // dim the Blue LED with the value in pot1 00115 LED_2 = 1; //Turn off LED 00116 LED_3 = 1; //Turn off LED 00117 spkr = message->Pot2_Value; // dim the Blue LED with the value in pot1 00118 } 00119 else if (message->Light == 2) 00120 { 00121 LED_1 = 1; //Turn off LED 00122 LED_2 = message->Pot1_Value; // dim the Green LED with the value in pot1 00123 LED_3 = 1; //Turn off LED 00124 spkr = message->Pot2_Value; // dim the Blue LED with the value in pot1 00125 } 00126 else if (message->Light == 3) 00127 { 00128 LED_1 = 1; //Turn off LED 00129 LED_2 = 1; //Turn off LED 00130 LED_3 = message->Pot1_Value; // dim the Red LED with the value in pot1 00131 spkr = message->Pot2_Value; 00132 } 00133 else if (message->Light == 4) 00134 { 00135 LED_1 = message->Pot1_Value; // dim the Blue LED with the value in pot1 00136 LED_2 = message->Pot1_Value; // dim the Green LED with the value in pot1 00137 LED_3 = 1; //Turn off LED 00138 spkr = message->Pot2_Value; // dim the Blue LED with the value in pot1 00139 } 00140 00141 mpool.free(message); // Frees up memory 00142 } 00143 } 00144 }
Generated on Sat Jul 23 2022 16:02:16 by
1.7.2